huka falls?
nah probably go east coast Napier taupo highway to the hawkes bay.
A place near taupo for trout that you dont need a taupo licence (standard licence though) is the below the awatetea dam tons of fish there use a black and gold toby anyone can catch fish there. I used to get a fish or atleast a follow every cast. the water level rises when they generate power from memory a siren goes when they start, you can still fish when they are generating just not as many places to stand.
Have a go there and you will be hooked